Athletes Performed 20% Better With Just 10 Grams of Carbs During Exercise (Not the 120 Grams Experts Recommend)

Professor Tim Noakes just dropped a bombshell that challenges everything mainstream nutrition has taught us.

His groundbreaking 2026 study won best paper of the year.

It proves the human body was never designed to run on carbohydrates—and reveals why your daily bread, rice, and fruit might be sabotaging your health.

The world-renowned researcher risked his career to expose how the medical establishment has been misleading millions about diet, statins, and metabolic health.

Carbohydrates Aren’t Essential Fuel—They’re a Recent Addition

When asked directly whether humans are designed to run on carbohydrates, Noakes doesn’t hesitate.

No, I don’t. I think we’re designed to run on fat. And that’s our evolutionary history that we weren’t growing maize and all and rice and potatoes two million years ago when humans became and differentiated from other animals.

According to Noakes, eating meat gave humans their large brains and distinctive structure. Grains, historically considered peasants’ food, only became dietary staples after 1977 when US dietary guidelines changed under pressure from grain industries.

In South Africa, he notes, 45% of dietary calories now come from maize—yet people consuming it have only eaten these high-maize foods for roughly a hundred years.

After millions of years of evolution, this sudden dietary shift explains why modern populations struggle with obesity and metabolic disease.

Insulin Resistance: The Hidden Driver of Weight Gain

Too many carbohydrates trigger excessive insulin production, particularly in people not designed to metabolize large amounts of carbs.

This creates insulin resistance in many tissues—but not in fat cells.

The fat cells are not insulin resistant. They love to take up insulin and turn everything into fat. So we get obese and then we get all the other complications type 2 diabetes all the cancers the dementias many of the other conditions are all linked to this insulin resistance.

Noakes explains that insulin resistance likely evolved as a carbohydrate-sparing mechanism. When carbohydrates were scarce, bodies needed to conserve them.

Now, flooding insulin-resistant bodies with carbohydrates creates metabolic chaos.

The food industry knows carbohydrates are addictive, Noakes argues, and this addiction fuels the obesity epidemic of the last 40 years.

Without Insulin, You Cannot Store Fat

Noakes recently read Gary Taubes’s book on diabetes, which meticulously documents medical literature from the past century.

When insulin was discovered in 1921, it saved children dying from type 1 diabetes—but it also caused dramatic weight gain.

Doctors began giving insulin to anorexic patients who weren’t eating much, and they ballooned.

There it is. There’s the evidence if you want to put on weight you have to have insulin without insulin you cannot put on weight.

Type 1 diabetics without insulin fade away, becoming completely skeletal with no muscle or fat. Yet when insulin was introduced, the medical establishment refused to acknowledge it made people fat.

Instead, they blamed patients for eating too much—a narrative that persists today.

Even more concerning, doctors using insulin in the 1920s noticed that patients developed severe coronary artery disease within 10-15 years. This evidence was buried when cholesterol became the convenient villain instead.

Whole Wheat Bread Equals an Apple for Blood Sugar

People assume whole grain bread is healthier than fruit because of fiber content. Noakes disagrees completely.

The answer is yes. They will be the same. They’re equally bad for you.

As a type 2 diabetic himself, Noakes can’t eat even one slice of bread without his glucose spiking dramatically.

For severely insulin-resistant, pre-diabetic, or diabetic individuals, any carbohydrate is problematic—regardless of how complex it is.

The fiber in an apple doesn’t change the fundamental problem: the body must metabolize that carbohydrate, which forms glucose in the bloodstream and triggers massive insulin release.

When insulin resistance exists, clearing that glucose takes far too long.

The Medical Profession Is Compromised

Noakes didn’t enter this statement lightly. He initially viewed medicine as a noble profession helping people become healthier.

Disciplines like surgery and obstetrics remain exceptional, he notes.

The problem lies with allopathic medicine—using medications to treat disease without understanding root causes.

The pharmaceutical industry controls the medical profession utterly, completely, absolutely. And they control them by telling doctors what they can prescribe and monitoring what they prescribe and then rewarding them for prescribing the right medications.

Medicine rewards memorization, not creativity. Doctors with photographic memories rise to the top by quoting recent journal articles.

But these aren’t the physicians who change medical practice—creative thinkers do.

Noakes was ultimately pushed out of mainstream medicine because he questioned established opinions and suggested alternatives when treatments weren’t working.

The December 2010 Revelation That Changed Everything

One morning, Noakes went for a run and felt terrible. Climbing a tiny hill left his heart rate at 150, making him feel like he’d summited Mount Everest.

When he returned home and checked his email, an advertisement promised: “Lose six pounds in six weeks without hunger.”

The “without hunger” part caught his attention. Then he saw it was written by three researchers he respected—but it promoted “The New Atkins for the New You.”

Noakes initially reacted with anger, believing Atkins had killed patients by recommending high-fat diets. But he bought the book anyway.

An hour and a half later, I said, “Oh my gosh, I got it all wrong.” because they had 150 references and they were published in good journals, American Journal of Clinical Nutrition, and they all showed that a low carbohydrate diet had benefited aspects of human health.

Despite his interest in sport and nutrition, Noakes had never seen one of those studies. They’d been hidden because they threatened the entire medical narrative.

By lunchtime that same day, he eliminated all carbs. Within 48 hours, he felt dramatically better.

Reversing Diabetes by Reading One Book

Noakes immediately realized he was diabetic once he changed his diet. His weight dropped, and his running performance went back 20 years.

He co-authored The Real Meal Revolution, which became one of South Africa’s best-selling books.

This created massive problems. The university employed a professor promoting a diet contradicting their teachings. More critically, his institute was funded by a medical insurance company promoting grain-based diets—and Noakes had been their spokesperson.

Funding disappeared quickly. Eventually, a South African dietician with strong connections to big food companies reported him to the health professions council.

The trial lasted four years with 28 days in court. Noakes won on every count by presenting the science.

Researchers later studied 25 people claiming they’d reversed diabetes just by reading The Real Meal Revolution. Twenty had indeed reversed their type 2 diabetes by following one page of “green foods.”

Those who didn’t reverse their diabetes continued having cravings—they hadn’t eliminated their sugar addiction.

The Revolutionary 2026 Study on Exercise Performance

Noakes’s latest research, published in January 2026 in the American Journal of Physiology, challenges every assumption about carbohydrates and athletic performance.

Working with Dr. Jeff Volek, Dr. Dominic D’Agostino, and Dr. Philip Phinney, Noakes started with the simplest possible study: having people run 5 kilometers on a treadmill.

We just had people run 5 km on the treadmill and guess what? There was no difference in performance whether people ate a highfat diet, high carbohydrate diet and we were shocked.

They fully expected the high-fat diet to worsen performance. When it didn’t, they tested shorter distances—one-mile time trials showed identical results.

To completely deplete glycogen, they had athletes perform six 800-meter intervals. Performance remained identical, but something remarkable happened with metabolism.

Highest Fat Oxidation Rates Ever Measured in Humans

During those intense 800-meter repetitions, researchers measured the highest rates of fat use ever documented in human history.

Athletes were exercising at 86% of their maximum capacity—a level where textbooks claim fat cannot be burned.

Textbooks state that at 85% of maximum effort, you cannot burn any fat during exercise. Yet at 86%, these athletes showed record-breaking fat oxidation.

Calculations suggest a 55kg Kenyan athlete could run a sub-2-hour marathon burning only fat.

Two Glucose Pools: A 50-Year Discovery in One Slide

Through decades of research, Noakes finally understood something never articulated before: the body regulates glucose in two separate pools.

There are two glucose pools in the body. No one has ever said that before.

The large glucose pool comprises muscles, containing up to 800 grams of carbohydrate or more. Contrary to popular belief, muscle glycogen’s major function isn’t as metabolic fuel during exercise.

One of Noakes’s PhD students measured people at rest—some burned 100% carbohydrate upon waking, while others burned 100% fat.

Diet was the determining factor. High-carbohydrate diets meant burning carbohydrates; low-carbohydrate diets meant burning fat.

Muscle glycogen serves as a dump for excess carbohydrates. Insulin drives glucose into fat cells and muscles when blood glucose is high.

The small glucose pool—blood glucose and liver stores—has one critical function: keeping blood glucose absolutely stable.

The Definitive Experiment

After seven years of experiments, researchers designed the definitive study. They manipulated muscle glycogen content through diet while also regulating the small glucose pool by fasting athletes and either providing glucose during exercise or withholding it.

Athletes ate high-carbohydrate or low-carbohydrate diets for six weeks, then were tested under two conditions: receiving either a placebo drink or actual carbohydrates—but only enough to maintain normal blood glucose.

When athletes received the placebo after either diet, performance over two hours was identical, despite vastly different metabolism.

What you eat before exercise has no impact whatsoever on performance.

When athletes received small amounts of glucose during exercise (10-20 grams per hour, not the commonly recommended 120 grams), performance in both groups improved by 20%.

Hypoglycemia was prevented, and athletes could sustain significantly more effort.

Best Impact Paper of 2025

The American Journal of Physiology awarded Noakes’s study the best impact paper of 2025.

This research came from a tiny Pennsylvania college laboratory, not Harvard, Yale, Cambridge, or Oxford. It was funded by departmental grants, not major NIH funding.

Yet it outperformed studies from prestigious laboratories researching cancer and other diseases.

Reviewers called it revolutionary and paradigm-shifting.

Sedentary People Have No Right to Carbohydrates

If inactive individuals don’t exercise, they’re not burning muscle glycogen. Once muscles are full with 200-400 grams of carbohydrate, there’s nowhere for additional glucose to go.

Continuing a high-carbohydrate diet means glucose must be converted to fat or used as fuel. The brain uses about 200 grams daily, but that’s insufficient to create carbohydrate balance.

If you’re inactive, you’ve absolutely got no right to take in carbohydrates because you’re going to have insulin resistance. You’re going to have high insulin and you’re only going to turn the carbohydrates and the fat you ingest to storage form.

For sedentary people eating high-carbohydrate diets, the body cannot maintain carbohydrate balance. Hyperinsulinemia results, storing both carbohydrates and fat.

There’s no role for carbohydrates in inactive lifestyles.

Becoming Fat-Adapted: The Key Metabolic Shift

Fat adaptation requires lowering muscle glycogen levels sufficiently to reduce insulin below six units.

Before reading about low-carbohydrate diets in 1978, Noakes was running 120 kilometers weekly and competing in marathons—yet his insulin measured 30 units on a high-carbohydrate diet. Normal is below six.

Despite extreme exercise, he was profoundly insulin-resistant.

To become fat-adapted, insulin must drop below five units. For many people, this requires reducing carbohydrate intake to 50 grams daily.

Some studies show elite athletes can transition from complete carbohydrate burners to complete fat burners within five days.

Noakes believes humans are designed to burn fat, but this capacity is hidden. When muscle glycogen stays perpetually high, insulin remains elevated, completely inhibiting fat metabolism.

Getting insulin below six requires dramatically cutting carbohydrates—hard work, but essential.

Monitor Hunger and Cravings, Not Calories

Modern ultra-processed foods are deliberately designed to create addiction through cravings.

Women frequently approach Noakes saying he eliminated their food cravings—the highest compliment he receives.

Most people are sugar-addicted without realizing it. The addiction only becomes apparent when eating high-fat diets and removing carbohydrates.

What should people monitor? Sugar and carbohydrate intake. Once cravings disappear, fat adaptation has occurred.

Noakes studied 25 people claiming they’d reversed diabetes by reading The Real Meal Revolution. Twenty had successfully reversed type 2 diabetes.

Those who failed continued experiencing cravings—they hadn’t conquered sugar addiction.

Eliminating sugar addiction is essential. People can’t moderate addictive substances. Just as alcoholism isn’t reversed by drinking one glass daily, carbohydrate addiction can’t be managed through moderation.

As someone said about addiction: one is too much, and a thousand is not enough.

The 80kg Weight Loss in 28 Weeks

Noakes shares one remarkable success story. A man weighing 160kg couldn’t fit in an airplane seat during a flight to Zimbabwe.

The passenger beside him complained she had no room to sit. This two-hour flight became miserable humiliation.

Upon returning to Cape Town, he immediately saw his doctor. His blood pressure was 200, blood glucose indicated diabetes, and she insisted he go directly to the hospital.

He refused, went online instead, found Noakes’s low-carbohydrate approach, and adopted the green food list.

He lost 80 kg in 28 weeks.

He accomplished this by controlling sugar addiction from day one. When Noakes mentioned this case, one endocrinologist who disliked him claimed it was impossible to lose more than 5kg on a low-carbohydrate diet.

Yet this endocrinologist had treated diabetic patients for 40 years without seeing any lose more than a few kilograms.

Rating Common “Healthy” Foods

When asked to rate foods on a scale of 1-10 (10 being worst for blood sugar and insulin), Noakes doesn’t hold back:

• Oatmeal: 10
• Sweet potatoes and potatoes: 10
• Brown rice: 10
• Keto cookies: 5 (they contain some sugar and maintain sweet taste addiction)
• Stevia and monk fruit: 10
• Sourdough bread: 10
• Bananas and apples: 10
• Blueberries: 3-4 (lowest in carbohydrates among fruits)
• Milk: 2-3 (contains some carbohydrate but generally acceptable)

His rating of stevia and monk fruit surprises many. While they may not spike blood glucose, they maintain sweet taste addiction—a critical barrier to metabolic healing.

People must re-educate their palates away from sweetness toward bitterness. Noakes was absolutely addicted to sugary sweetness but completely eliminated that preference over 12-14 years.

The Green Foods: What to Actually Eat

Noakes’s personal diet is straightforward:

• Meat (primarily)
• Chicken
• Fish
• Dairy, including lots of cheese
• Occasional nuts
• Eggs

None of these foods stimulate glucose and insulin. While some might consider this monotonous, it offers tremendous variety and remains very tasty.

The key is having comfort foods that aren’t carbohydrates. Noakes relies on biltong (South African jerky), nuts, and cheese when hungry between meals.

Eat large meals of good foods, then fast for most of the rest of the day.

This approach only works when eating these foods. High-carbohydrate diets create hunger every three to four hours, making extended fasting impossible.

When Weight Loss Stalls

If someone follows this approach but weight loss stalls, they need to examine protein and fat ratios.

Particularly for women, cutting fat and increasing protein intake often breaks plateaus.

This presents challenges because high-protein foods are harder to find. Meat usually contains considerable fat, cheese is full of fat, and nuts contain plenty of fat.

High-fat diets work brilliantly for many people. Those who don’t respond well need higher protein—achievable through chicken, fish, or supplements like creatine.

Fasting can also help, though Noakes hasn’t personally fasted beyond 24 hours.

Most importantly, people must verify they’re truly avoiding all sugars and carbohydrates without sneaking any in.

The Cholesterol Myth and Hidden Harm

The diet-heart hypothesis claims eating fat raises cholesterol and causes heart disease. Noakes presented extensive evidence in his trial proving this completely false.

Original arguments relied on associational data, not clinical trials. When clinical trials were conducted, they never demonstrated that changing from saturated fat to other fats—or cutting fat and increasing carbohydrates—provided benefits.

The Women’s Health Initiative, a $700 million study, asked participants to reduce saturated fat and replace it with vegetables or polyunsaturated fats.

After seven years, they reported initial findings—but hid evidence of harm.

The abstract didn’t mention it. Buried in one line was the hidden harm.

After 13 years of follow-up, the final data revealed: post-menopausal women who started the trial with established heart disease and ate the low-fat diet faced a 69% increased risk of developing another cardiac condition.

So this diet that’s meant to prevent heart disease exacerbated it in the people at greatest risk.

Healthy people showed no benefit and no harm over 13 years—but longer duration might have revealed harm.

Noakes wrote a detailed article exposing this hidden data. Not one person from the Women’s Health Initiative criticized it or claimed he was wrong.

They published full data in one paper, then published another removing the group that suffered problems—reporting only for healthy participants with the conclusion: didn’t make it worse, didn’t make it better.

$700 million to prove nothing.

Diabetes, Not Cholesterol, Drives Arterial Disease

What people ignore is that diabetes is the most common cause of arterial disease.

Doctors who first started injecting insulin to treat patients in the 1920s-1940s reported that if patients lived 15-25 years, they would develop arterial disease.

This was documented by gold-standard diabetes care physicians—then forgotten when the cholesterol story became more interesting and profitable.

Cholesterol became the villain because statins created a trillion-dollar industry.

Statins Don’t Lower CAC Scores—They May Increase Them

Coronary artery calcium (CAC) scores measure plaque buildup. Studies Noakes has reviewed show CAC scores don’t decrease on statins and may actually increase.

When patients not taking statins see their CAC scores rise, cardiologists warn they’re getting worse.

When CAC scores rise on statins, the explanation changes: increased calcium is “stabilizing” plaque, preventing it from breaking off and causing heart attacks.

This represents the problem when people follow models instead of science. The model says cholesterol causes problems, so lowering cholesterol with statins must improve everything.

But it doesn’t.

Noakes recommends against measuring cholesterol. Instead, get a CAC score. If elevated, consider specialized non-invasive radiological techniques to assess arterial disease.

Just as insulin should be measured instead of cholesterol, coronary arteries should be visualized directly—cholesterol levels cannot predict their condition, despite what doctors claim.

Liver Fat Drains Quickly—But Reversal Isn’t Guaranteed

Quitting carbohydrates immediately begins draining fat from the liver, often within one to two weeks.

Professor Taylor’s “personal fat threshold” theory suggests fat accumulates in the liver and pancreas until reaching individual thresholds that trigger diabetes. Reducing that fat should reverse diabetes.

Noakes doesn’t believe this is entirely true. He lost 20kg but couldn’t reverse his diabetes—only control it better with metformin and other interventions.

I still have to take metformin and other things. So I don’t believe that theory.

Liver fat is problematic, but once present too long, it creates irreversible insulin resistance and type 2 diabetes.

Lowering liver fat quickly when pre-diabetic for only 5-10 years can reverse diabetes. After 30-40 years, removing that fat won’t reverse the condition.

It’s more complex than just liver and pancreatic fat—it’s a whole-body disease.

However, preventing fat accumulation in the liver and pancreas in the first place means never developing type 2 diabetes.

The Brutal Reality: Visit a Dialysis Unit

When someone says they want to quit carbs but can’t give up bread, chocolate, and wine, Noakes has stark advice:

I’d say go to the hospital and look at the renal dialysis unit and see all the people there who are now dependent on renal dialysis for their life. And I say, “Well, that’s what you’re going to turn out to be.”

Everyone with diabetes dies of the disease. It’s not a pleasant death.

Diabetes destroys arterial function, ultimately knocking out the brain, kidneys, or heart.

• Brain damage leads to dementia
• Kidney failure requires dialysis
• Heart failure creates cascading complications

Noakes watched his father—an incredibly powerful, energetic, fantastic human being—shrivel away from diabetes.

Yesterday, hundreds or thousands of people died from diabetes in the United States alone. Yet society obsesses over statistically irrelevant threats while ignoring the epidemic killing people daily.

Americans have approximately a one-in-a-billion chance of contracting Ebola, yet it dominated headlines while diabetes deaths were ignored.

Medicine has completely failed to prioritize the real problem: obesity, diabetes, high-carbohydrate diets, and addictive eating.

To his credit, Robert Kennedy is addressing this in the United States against significant resistance. Other countries must follow his lead.

The system isn’t coming to save you. Be an advocate for your own health—starting with questioning everything you’ve been told about carbohydrates.